Ethyl 6-bromohexanoate → rac-(E)-6-[2-(3-Methoxy-3-oxo-1-propenyl)-3-[6-[(tetrahydro-2H-pyran-2-yl)oxy]-1-hexynyl]phenoxy]hexanoic Acid Ethyl Ester
Reaction equation
[CH3:1][O:2][C:3](=[O:26])/[CH:4]=[CH:5]/[C:6]1[C:11]([C:12]#[C:13][CH2:14][CH2:15][CH2:16][CH2:17][O:18][CH:19]2[CH2:24][CH2:23][CH2:22][CH2:21][O:20]2)=[CH:10][CH:9]=[CH:8][C:7]=1[OH:25].Br[CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34]>>[CH2:36]([O:35][C:33](=[O:34])[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28][O:25][C:7]1[CH:8]=[CH:9][CH:10]=[C:11]([C:12]#[C:13][CH2:14][CH2:15][CH2:16][CH2:17][O:18][CH:19]2[CH2:24][CH2:23][CH2:22][CH2:21][O:20]2)[C:6]=1/[CH:5]=[CH:4]/[C:3]([O:2][CH3:1])=[O:26])[CH3:37]Participants
3
Reactant 2
Product 1
Procedure
Using the procedure of example 122, rac-(E)-3-[2-hydroxy-6-[6-[(tetrahydro-2H-pyran-2-yl)oxy]-1-hexynyl]phenyl]-2-propenoic acid methyl ester (example 121), was alkylated with ethyl 6-bromohexanoate giving the title compound as a pale-yellow oil, in 93.3% yield.
Sources & evidence
- ORD record
- ord-dd4343bb7e9e4be2810d918461c33098
- Source dataset
- uspto-grants-1993_12
- Patent number
- US05273999
Reaction notes
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